PITSTOP is a backdoor that was deployed on compromised Ivanti Connect Secure VPNs during Cutting Edge to enable command execution and file read/write.[1]
5
TechniquesBottom 23%
4
Tactics32nd pct
0
Threat groupsNone recorded
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
PITSTOP can listen and evaluate incoming commands on the domain socket, created by PITHOOK malware, located at /data/runtime/cockpit/wd.fd for a predefined magic byte sequence. PITSTOP can then duplicate the socket for further communication over TLS.4
Persistence · Stealth · Command and Controlno detection rules
Reach is how much of ATT&CK this malware touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques5Bottom 23%
23rd percentile · 77% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics432nd pct
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
Threat groups061% tie · 22 values
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
Campaign185% tie · 8 values
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique6medBottom 8%
8th percentile · 92% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique7med
PITSTOP detections S1123
62 distinct rules cover the 5 techniques recorded for this malware. 38 Sigma · 24 Splunk.
4 covered by at least one rule1 with no coverage62 distinct rules in total
Showing 1-50 of 62 rules
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MITRE ATT&CK
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Detects changes to the EC2 instance startup script. (...)
Detects the Linux-specific execution chain of the plain-crypto-js malicious npm dependency by Axios NPM package, including payload download via curl and detached execution using nohup and python3. (...)
Detects the macOS-specific execution chain of the plain-crypto-js malicious npm dependency in Axios NPM Package, including AppleScript execution via osascript, payload download, permission modification, execution, and cleanup.
The following analytic detects the use of CertUtil.exe with the 'decode' argument, which may indicate an attempt to decode a previously encoded file, potentially containing malicious payloads. (...)
The following analytic detects the use of known suspicious SSL certificates in any observed event where the SSL_CertFingerprint field is present. (...)
The following analytic detects connections with a high Encrypted Visibility Engine (EVE) threat confidence score, indicating potentially malicious behavior within encrypted traffic. (...)
The following analytic detects suspicious Base64 decode operations that may indicate malicious activity, such as data exfiltration or execution of encoded commands. (...)
Detects potential abuse of the Linux Magic SysRq (System Request) key by adversaries with root or sufficient privileges to manipulate or destabilize a system. (...)
The following analytic detects the creation or overwrite of commonly targeted Linux system binaries such as cat, ls, cp, ps, mv, netstat, ss, and lsof. (...)
The following analytic detects the creation of a .desktop file within XDG autostart directories, including the system-wide /etc/xdg/autostart and user-local ~/.config/autostart paths. (...)
The following analytic detects the execution of a command to enable all SysRq functions on a Linux system, a technique associated with the AwfulShred malware. (...)
Detects the use of tail to extract bytes at an offset from an image and then decode the base64 value to create a new file with the decoded content. (...)
Detects the creation of files with unusually long filenames (100 or more characters), which may indicate obfuscation techniques used by malware such as VShell. (...)